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Table 2 Hospital-acquired respiratory viral infections (HARVI) in patients at risk

From: Droplet precautions on-site (DroPS) during the influenza season 2018/2019: a possible alternative to single room isolation for respiratory viral infections

Outcome, no (%) DroPS wards
(n = 741)
Regular wards
(n = 293)
Risk difference in % (95% CI) P value
Primary outcome
Influenza/RSV positive, no. (%) 2 (0.3) 2 (0.7) −0.4 (− 1.6 to 0.8) 0.684
Secondary outcomes
Any respiratory virus positive, no. (%) 5 (0.7) 2 (0.7) 0.0 (− 1.1 to 1.1) 0.9
Clinical diagnosis, no. (%) 17 (2.3) 2 (0.7) 1.6 (− 0.05 to 3.2) 0.138
Influenza/RSV positive – or no Influenza/RSV test performed, no. (%) 4 (0.5) 2 (0.7) −0.2 (− 1.3 to 1.1) 0.9
Any respiratory virus positive – or no complete viral panel test performed, no. (%) 9 (1.2) 2 (0.7) 0.5 (− 0.9 to 2.0) 0.678
  1. No. = number; (%) = percent; RSV = respiratory syncytial virus; DroPS (droplet precautions on-site); regular wards: pathogen-based single room strategy. Positive risk difference indicates regular is better than DroPS